NVIDIA GeForce GTX 660 Rev. 2 vs AMD Radeon RX 560X

VS

NVIDIA GeForce GTX 660 Rev. 2

AMD Radeon RX 560X

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 4GB VRAM Radeon RX 560X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Rev. 2 's Advantages

Larger VRAM bandwidth (144.2GB/s vs 112.0GB/s)

AMD Radeon RX 560X 's Advantages

Released 3 years and 7 months late

Boost Clock has increased by 24% (1275MHz vs 1032MHz)

More VRAM (4GB vs 2GB)

64 additional rendering cores

Lower TDP (75W vs 140W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2

1.981 TFLOPS

Radeon RX 560X +31%

2.611 TFLOPS

GeForce GTX 660 Rev. 2

VS

Radeon RX 560X

Graphics Card

Sep 2014

Release Date

Apr 2018

GeForce 600

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

980 MHz

Base Clock

1175 MHz

1032 MHz

Boost Clock

1275 MHz

1502 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

144.2GB/s

Bandwidth

112.0GB/s

Render Config

-

Compute Units

16

-

960

Shading Units

1024

80

TMUs

64

24

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

1024 KB

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

20.40 GPixel/s

82.56 GTexel/s

Texture Rate

81.60 GTexel/s

-

FP16 (half)

2.611 TFLOPS

1.981 TFLOPS

FP32 (float)

2.611 TFLOPS

82.56 GFLOPS

FP64 (double)

163.2 GFLOPS

Board Design

140W

TDP

75W

300 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

1x 6-pin

Power Connectors

None

Graphics Processor

GK104

GPU Name

Polaris 21

-

GPU Variant

Polaris 21 XT (215-0908004)

Kepler

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

3.54 billion

Transistors

3 billion

294 mm²

Die Size

123 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

6.4

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